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/*
* Original implementation (C) 2009-2011 Debasish Ghosh
* Adapted and extended in 2011 by Mathias Doenitz
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package spray.json
/**
* Provides the JsonFormats for the most important Scala types.
*/
trait BasicFormats {
implicit object IntJsonFormat extends JsonFormat[Int] {
def write(x: Int) = JsNumber(x)
def read(value: JsValue) = value match {
case JsNumber(x) => x.intValue
case x => deserializationError("Expected Int as JsNumber, but got " + x)
}
}
implicit object LongJsonFormat extends JsonFormat[Long] {
def write(x: Long) = JsNumber(x)
def read(value: JsValue) = value match {
case JsNumber(x) => x.longValue
case x => deserializationError("Expected Long as JsNumber, but got " + x)
}
}
implicit object FloatJsonFormat extends JsonFormat[Float] {
def write(x: Float) = JsNumber(x)
def read(value: JsValue) = value match {
case JsNumber(x) => x.floatValue
case JsNull => Float.NaN
case x => deserializationError("Expected Float as JsNumber, but got " + x)
}
}
implicit object DoubleJsonFormat extends JsonFormat[Double] {
def write(x: Double) = JsNumber(x)
def read(value: JsValue) = value match {
case JsNumber(x) => x.doubleValue
case JsNull => Double.NaN
case x => deserializationError("Expected Double as JsNumber, but got " + x)
}
}
implicit object ByteJsonFormat extends JsonFormat[Byte] {
def write(x: Byte) = JsNumber(x)
def read(value: JsValue) = value match {
case JsNumber(x) => x.byteValue
case x => deserializationError("Expected Byte as JsNumber, but got " + x)
}
}
implicit object ShortJsonFormat extends JsonFormat[Short] {
def write(x: Short) = JsNumber(x)
def read(value: JsValue) = value match {
case JsNumber(x) => x.shortValue
case x => deserializationError("Expected Short as JsNumber, but got " + x)
}
}
implicit object BigDecimalJsonFormat extends JsonFormat[BigDecimal] {
def write(x: BigDecimal) = {
require(x ne null)
JsNumber(x)
}
def read(value: JsValue) = value match {
case JsNumber(x) => x
case JsString(x) => BigDecimal(x)
case x => deserializationError("Expected BigDecimal as JsNumber, but got " + x)
}
}
implicit object BigIntJsonFormat extends JsonFormat[BigInt] {
def write(x: BigInt) = {
require(x ne null)
JsNumber(x)
}
def read(value: JsValue) = value match {
case JsNumber(x) => x.toBigInt
case JsString(x) => BigInt(x)
case x => deserializationError("Expected BigInt as JsNumber, but got " + x)
}
}
implicit object UnitJsonFormat extends JsonFormat[Unit] {
def write(x: Unit) = JsNumber(1)
def read(value: JsValue): Unit = {}
}
implicit object BooleanJsonFormat extends JsonFormat[Boolean] {
def write(x: Boolean) = JsBoolean(x)
def read(value: JsValue) = value match {
case JsTrue => true
case JsFalse => false
case x => deserializationError("Expected JsBoolean, but got " + x)
}
}
implicit object CharJsonFormat extends JsonFormat[Char] {
def write(x: Char) = JsString(String.valueOf(x))
def read(value: JsValue) = value match {
case JsString(x) if x.length == 1 => x.charAt(0)
case x => deserializationError("Expected Char as single-character JsString, but got " + x)
}
}
implicit object StringJsonFormat extends JsonFormat[String] {
def write(x: String) = {
require(x ne null)
JsString(x)
}
def read(value: JsValue) = value match {
case JsString(x) => x
case x => deserializationError("Expected String as JsString, but got " + x)
}
}
implicit object SymbolJsonFormat extends JsonFormat[Symbol] {
def write(x: Symbol) = JsString(x.name)
def read(value: JsValue) = value match {
case JsString(x) => Symbol(x)
case x => deserializationError("Expected Symbol as JsString, but got " + x)
}
}
}
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